Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of the weighted average significant unobservable inputs (Level 3 inputs) used in measuring the Company's warrant liability that is categorized within Level 3 of the fair value hierarchy (Details)

v3.20.4
Fair Value Measurements - Summary of the weighted average significant unobservable inputs (Level 3 inputs) used in measuring the Company's warrant liability that is categorized within Level 3 of the fair value hierarchy (Details) - Significant unobservable inputs (Level 3) [Member] - Warrant [Member]
Dec. 31, 2020
$ / shares
Dec. 31, 2019
$ / shares
Common Stock Price $ 3.70 $ 12.20
Term (Years)    
Warrants and Rights Outstanding, Measurement Input 2.26 3.26
Volatility    
Warrants and Rights Outstanding, Measurement Input 112 62
Risk-free rate of interest    
Warrants and Rights Outstanding, Measurement Input 0.13 1.62
Dividend Yield    
Warrants and Rights Outstanding, Measurement Input 0.0 0.0